package com.atguigu.gulimall.cart.controller;

import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.gulimall.cart.interceptor.CartInterceptor;
import com.atguigu.gulimall.cart.service.CartService;
import com.atguigu.gulimall.cart.vo.Cart;
import com.atguigu.gulimall.cart.vo.CartItem;
import com.atguigu.gulimall.cart.vo.UserInfoTo;
import oracle.jdbc.proxy.annotation.GetProxy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * 浏览器有一个cookie;user-key;标识用户身份，一个月后过期：
 * 如果第一次使用的购物车功能，都会给一个临时的用户身份
 * 浏览器以后保存，每次访问都会带上这个cookie;
 * 登录： session有
 * 没登陆：按照cookie里面的userkey来做
 * 如果没有临时用户需要创建一个
 */
@Controller
public class CartController {
    @Autowired
    CartService cartService;
    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem>getCurrentUserCartItems(){
        return cartService.getUserCartItems();
    }
    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html"; //重定向
    }
    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num){
        cartService.changeItemCount(skuId, num);
        return "redirect:http://cart.gulimall.com/cart.html"; //重定向
    }
    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("checked") Integer check){
        cartService.checkItem(skuId, check);
        return "redirect:http://cart.gulimall.com/cart.html"; //重定向
    }

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        //1. 快速得到用户信息, id ,user-key
        Cart cart = cartService.getCart();
        model.addAttribute("cart", cart);//标记一下，看看前端
        return "cartList";
    }


    /**
     * 添加商品到购物车
     * @return
     */
    @GetMapping("/addCartItem")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num,
                            RedirectAttributes ra) throws ExecutionException, InterruptedException {
            cartService.addToCart(skuId, num);
//            model.addAttribute("skuId", skuId);
            ra.addAttribute("skuId",skuId);
            return "redirect:http://cart.gulimall.com/addToCartSucess.html"; //重定向
    }
    @GetMapping("/addToCartSucess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model){
        //重定向到成功页面
        CartItem cartItem = cartService.getCartItem(skuId);
        model.addAttribute("cartItem",cartItem);
        return "success";
    }

}
